From 5b288d2abf5dd14860caba37aa6d44a4ffa197d8 Mon Sep 17 00:00:00 2001
From: Hans Petter Selasky <hselasky@FreeBSD.org>
Date: Tue, 22 Nov 2011 21:53:19 +0000
Subject: [PATCH] Style change.

Suggested by:	jhb @ and marius @
MFC after:	1 week
---
 sys/kern/subr_bus.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c
index c337c78ace3..605f7723d9a 100644
--- a/sys/kern/subr_bus.c
+++ b/sys/kern/subr_bus.c
@@ -1862,7 +1862,7 @@ device_delete_child(device_t dev, device_t child)
 	PDEBUG(("%s from %s", DEVICENAME(child), DEVICENAME(dev)));
 
 	/* remove children first */
-	while ( (grandchild = TAILQ_FIRST(&child->children)) ) {
+	while ((grandchild = TAILQ_FIRST(&child->children)) != NULL) {
 		error = device_delete_child(child, grandchild);
 		if (error)
 			return (error);
@@ -1903,7 +1903,7 @@ device_delete_all_children(device_t dev)
 
 	error = 0;
 
-	while ( (child = TAILQ_FIRST(&dev->children)) ) {
+	while ((child = TAILQ_FIRST(&dev->children)) != NULL) {
 		error = device_delete_child(dev, child);
 		if (error) {
 			PDEBUG(("Failed deleting %s", DEVICENAME(child)));